Articles tagged with Superconduction
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Scientists have made a breakthrough in fulfilling perfect diamagnetism of sulfur hydride system under high pressure, using a highly sensitive magnetic susceptibility technique. The research confirms high-temperature superconductivity and determines the superconducting phase diagram of sulfur hydrogen system.
The superconducting quantum refrigerator utilizes the principles of superconductivity to create an environment conducive to generating unique properties that defy classical physics. Researchers successfully demonstrate a practical way to use the device, paving the way for advancements in quantum technologies and ultrafast computing.
Researchers at Yale University have discovered a way to catch and save Schrödinger's cat by predicting its quantum jumps. This breakthrough overturns cornerstone dogma in quantum physics and enables early warning systems for imminent jumps of artificial atoms containing quantum information.
Researchers at Zhejiang University have discovered a new iron-based superconductor with double FeAs layers, which is stabilized by inter-block charge transfer. The newly found superconductor, BaTh2Fe4As4(N0.7O0.3)2, exhibits contrasting structural and physical properties compared to previous hole-doped IBSCs.
Scientists created an EDLT device to control electron numbers and transfer energy, achieving superconducting states in both increasing and decreasing electron numbers. The system exhibited fundamentally different conditions for these states, with another superconducting state emerging when the substrate was bent.
In a study published in Physical Review Letters, researchers reveal that repulsive interactions between Cooper pairs themselves hold them in check in insulating materials. This finding could lead to new manipulation methods for superconducting devices and the design of novel electronic components.
Researchers at Tohoku University and Université Grenoble Alpes have demonstrated triplet superconductivity in the uranium-based material UBe13 using high pressure and magnetic fields. This phenomenon involves electrons forming parallel spin pairs, unlike conventional superconductors where opposite spins pair together.
Researchers have discovered the superconducting properties of phosphine P2H4 and P4H6 under high pressure. The findings suggest that P4H6 is responsible for superconductivity at high pressures, with a Tc estimated to be 67 K.
Researchers have found that superconductivity can be explained by applying quantum physics laws and a complex 'Feynman diagram' calculation. The new method enables a better understanding of high-temperature superconductivity.
Researchers have discovered that immobile charge carriers play a crucial role in superconductivity, acting as a 'glue' to pair mobile charge carriers and enable zero resistance. The study reveals the delicate balance between mobile and immobile charge carriers is key to understanding high-temperature superconductivity.
Researchers at the University of Houston have developed a new method to raise the transition temperature of superconducting materials, potentially leading to more efficient and reliable power grids. The breakthrough, reported in the Proceedings of the National Academy of Sciences, uses high pressure to increase the superconductors' abi...
Researchers found clear electronic evidence of non-Fermi liquid behaviors in an iron-based superconductor, Ba0.6K0.4)Fe2As2. The study showed that the normal state is fully incoherent with no quasiparticles along a well-defined Fermi surface.
Developed by HZB teams, the photocathodes exhibit high quantum efficiency and stability, crucial for superconducting electron sources. The new process delivers desired performance, with quantum efficiency remaining high even at low temperatures.
The study reveals that holes form a magnetic state in cuprates, stabilizing the antiferromagnetic state and increasing with doping. This process is believed to be responsible for high-temperature superconductivity in these materials.
Scientists at Ames Laboratory have discovered a new quantum criticality in a superconducting material, exhibiting a hedgehog spin-vortex crystal antiferromagnetic state without nematic transitions. This finding suggests that spin fluctuations are the primary driver of superconductivity.
A joint research team used materials informatics to identify two new superconducting materials, SnBi2Se4 and PbBi2Te4. The newly developed method efficiently explored new materials with desirable properties, including superb thermoelectric properties.
Researchers predict and experimentally identify new uranium hydrides that exhibit superconductivity, including UH7 which displays superconducting capability at -219° C. High pressure produces an unexpectedly rich collection of these compounds, many of which do not fit classical chemistry.
Katsuya Shimizu received the prize for his discovery of superconductivity in non-superconducting elements under high pressures with a Tc up to 29K. The Texas Center for Superconductivity at the University of Houston sponsors the award, recognizing outstanding contributions to the field.
Researchers developed a predictive model to identify the most beneficial 3D distortions for controlling edge localized modes (ELMs) in tokamaks. The KSTAR facility validated these predictions with remarkable accuracy, paving the way for ITER's successful operation.
Researchers discovered a novel quasi-one-dimensional superconductor K2Mo3As3 with a critical temperature exceeding 10K. This breakthrough indicates that Cr and Mo-based Q1D superconductors share common underlying origins, paving the way for further exploration of exotic superconducting mechanisms.
Physicists discovered that charge density waves (CDW) compete with superconductivity for conduction electrons, but also assist through phonon coupling. At a certain threshold level of disorder, CDW disappears and superconducting transition temperature is reduced.
Researchers discover that magnetic fields break apart Cooper pairs, leading to damping force from unpaired electrons, causing nanowires to lose superconductivity. The findings confirm critical theory predictions made a decade ago, providing new insights into quantum phase transitions.
Physicists at Ames Laboratory successfully mapped the spatial distribution of the Meissner effect, a hallmark signature of true superconductors. The technique used nitrogen-vacancy centers in diamond to measure magnetic fields with unprecedented sensitivity and resolution.
Researchers from Tokyo Metropolitan University have created new superconductors made of layers of bismuth sulfide and a high entropy rare earth alloy oxyfluoride. The new material retains superconducting properties over a wider range of lattice parameters than materials without high-entropy-alloy states.
A novel voltage signal has been observed in a hybrid metal nanowire-superconductor structure, where the voltage peak appears at the proximity-induced superconducting transition temperature and is proportional to the cooling rate. This finding offers a new method for detecting superconductivity without damaging or dissipating current.
Researchers have created a new superconductor with a critical temperature over 6 Kelvin, which could enable the development of ultrafast and powerful computers. The electroplated rhenium material is non-toxic, easy to work with mechanically, and melts at high temperatures.
Researchers at University of Illinois & Tokyo developed innovative 'flip-chip' technique to create layered TI/SC samples. Measurements revealed proximity effect induces superconductivity in both bulk and surface states, with surprising dependence on film thickness and temperature.
A new study reveals the existence of a pseudogap state in 1T-TiSe2, which shares similarities with high-Tc cuprates. The discovery indicates that CDW and superconductivity do not compete in this material, providing insight into the superconducting mechanism and its interplay with CDW.
Researchers from Kazan Federal University and Kazan Quantum Center have developed a multiresonator broadband quantum memory-interface with a record-breaking 16.3% efficiency at room temperature. The innovation has the potential to create universal memory solutions for quantum computers on superconducting qubits.
Researchers have confirmed the existence of the charge Berezinskii-Kosterlitz-Thouless (BKT) transition, a mirror-like phenomenon to vortex BKT transitions. The discovery builds on earlier work and could lead to breakthroughs in sensors, communication, memory storage, and other technologies.
A team of researchers from Nagoya University has discovered superconductivity in a quasicrystal alloy, which challenges conventional theories. The alloy's properties were found to be similar to those of weak-coupling superconductors, ruling out the role of critical eigenstates.
Researchers observed the full range of superconducting states from insulator to superconductor and back to re-entrant insulator in a WS2 monolayer. The discovery could lead to rational design of 2D superconducting devices at relatively high temperatures.
A team of researchers has demonstrated a proof-of-principle experimental demonstration on simulating molecular vibronic spectra using a 3D circuit quantum electrodynamics system. The simulator can model different molecules and obtain temporal correlation functions, electronic-vibronic coupling strength, and spectra of both equilibrium ...
Researchers discovered a previously unknown superconducting state in layered material LBCO, which occurs above the temperature at which it transmits electricity without resistance. The team used high-intensity infrared light to reveal this hidden state, providing new insights into the decades-long mystery of superconductivity in cuprates.
Engineers at Duke University have successfully counted the presence of at least four photons at a time using a widely used method of detecting single photons, providing easier paths to developing quantum-based technologies. The discovery will unlock new capabilities in physics labs working in quantum information science around the world.
Researchers at Google and UC Santa Barbara developed a new process for creating fully superconducting interconnects, compatible with existing qubit technology. This breakthrough aims to enable larger-scale quantum computers with millions of qubits.
Researchers develop a NbN-SNSPD with system detection efficiency over 90% at 2.1 K, enabling practical applications in quantum information technologies and optical quantum computing/simulation. The device exhibits timing jitters down to 79 ps, promising advantages in high-precision applications.
Researchers have improved the vertical stability of a superconducting tokamak in Korea, allowing for taller plasmas and exceeding design requirements. The new control system uses advanced sensors and electronics to stabilize the plasma's position, enabling more efficient fusion reactions.
Researchers at the Max Planck Institute found a unique state of matter in CeRhIn5, a superconducting crystal, where electrons unite to flow in the same direction. This 'electronic nematicity' state is a rare phenomenon between liquid and crystal, and its relationship with superconductivity is still being explored.
Researchers develop precise new way to study materials, revealing strong electron-phonon coupling that could lead to unprecedented superconductivity. The approach allows scientists to validate theories and computations describing complex materials' behavior, providing deep insights into their behavior.
Physicists have successfully demonstrated topological superconductivity in β-Bi2Pd films, a crucial step towards fault-tolerant quantum computing. The researchers found that tuning the chemical potential can isolate topological surface states, revealing a promising candidate for topological superconductor.
Researchers at the University of Illinois have shed new light on the electronic properties of Sr2RuO4, a topological superconductor. At temperatures above its critical temperature, the material exhibits anomalous interactions between electrons.
A research group from India used Raman scattering to study the vibrational properties of heavily boron-doped diamond, revealing a Fano resonance that is sensitive to impurity band evolution with boron doping. The study aims to increase the superconducting transition temperature in boron-doped diamond.
Researchers at Saarland University create a flexible, ultra-thin superconducting film with potential applications in space technology and medical devices. The material can screen electromagnetic fields and levitate magnets, making it ideal for applications where weight is an issue.
Weyl semimetal TaAs crystals exhibit zero bias conductance peak and double conductance peaks upon PtIr tip contact, indicating unconventional superconductivity. The study opens a new method to induce potential topological superconductivity on non-superconducting materials.
Researchers discovered a new iron arsenide superconductor, CaKFe4As4, with a high superconducting temperature of 35K without dopants, questioning established theories. The material's pristine samples allowed for accurate measurements of the superconducting gap, contradicting previous models.
Researchers at Cambridge University developed a portable superconducting magnetic system that can attain a 3-tesla level for the magnetic field. Advances in cryogenics and new cooling technologies made this possible, enabling potential applications in small motors, healthcare, and other fields.
Researchers at the University of Cambridge have found a way to trigger graphene's innate ability to act as a superconductor by coupling it with praseodymium cerium copper oxide (PCCO). This breakthrough enhances graphene's potential for industries such as healthcare and electronics. The study suggests that graphene could be used to cre...
Researchers employ a new 'stop-action' technique using laser pulses to measure complex electron interactions in materials. They discovered an unusual form of efficient energy loss at a specific energy level, which may play a role in superconductivity.
Researchers have developed a technique to remove unpaired electrons from superconducting quantum circuits, resulting in a three-fold improvement in qubit lifetime. This breakthrough has the potential to significantly improve the performance of quantum computers by reducing errors and increasing data storage time.
Scientists discover Bismuth is superconducting at extremely low temperatures, defying expectations due to its low carrier density. The finding opens new avenues for research into the fundamental laws of superconductivity.
Researchers from Brown University have demonstrated a method to put brakes on superconductivity by creating a random gauge field, disrupting the propagation of Cooper pairs and converting the material to an insulator.
Researchers use laser tweezers to control and arrange Abrikosov vortices in a superconductor, creating an AV-pattern. This technique has potential applications in quantum computation and optically controlled rapid single flux quantum logic elements.
Researchers at Caltech have confirmed that the pseudogap phase represents a new state of matter with properties different from the superconducting state. The discovery breaks nearly all spatial symmetries, providing clues about the origin of high-temperature superconductors.
Researchers at the University of Houston have developed a novel method to induce superconductivity in calcium iron arsenide, a non-superconducting compound. This breakthrough demonstrates a concept proposed decades ago and offers a new direction for finding more efficient and less expensive superconductors.
The Wendelstein 7-X (W7-X) experiment in Germany has achieved impressive initial plasma results, pushing the boundaries of magnetic confinement. The device uses a unique twist design to optimize plasma confinement on both individual-particle and macroscopic scales.
Ames Laboratory scientists investigated the properties of iron-based superconducting materials, finding that transition temperature and magnetic field penetration depth depend on composition and disorder. The study provides new knowledge on unconventional superconductivity and will aid in discovering high-temperature superconductors.
Researchers at University of Waterloo developed a new extensible wiring technique for controlling superconducting quantum bits, enabling the creation of scalable quantum computers. The technique, called the 'quantum socket,' connects classical electronics with quantum circuits and can be extended to thousands of qubits.
Researchers have made a breakthrough in transmitting spin information through superconducting materials, solving a major challenge for quantum computing. The discovery could lead to the development of more powerful computers capable of processing multiple spin states simultaneously.
Scientists have discovered a qualitatively new state of a superconducting artificial atom dressed with virtual photons, resolving a forty-year-old problem in atomic physics. The discovery provides a platform to investigate light-matter interaction at a fundamental level and may contribute to the development of quantum technologies.